Power supply 550w or 1000w

Deathrow

New Member
I am thinking of buying a new pc, theres an option to upgrade from the standard but not much advice. Now I have customised with a better porcessor, graphics etc. I'm unsure if I need the extra power as to upgrade the power supply from 550w to 1000 is a whopping £150!

So anyway heres the computer Im thinking of buying:

Genuine Windows Vista™ Home Premium
Intel® Core™ 2 Quad Q6600 Quad Core Processor(2.4GHz,8MB Cache,1066MHz)
Hybrid TV Tuner - Digital & Analogue
SLI nForce 680i Mainboard
4GB Memory
500GB Serial ATA hard drive with 16MB buffer
320MB nVIDIA GeForce 8800 GTS - Dual DVI, HDTV, TV-Out
22" Widescreen LCD Display(MM,DVI,5ms)
LightScribe Super Format 18x DVD Writer
X-Fi Xtreme Gamer Sound Card
T6100 - 5.1 Speakers + Subwoofer
6 USB, 2x Firewire, GB LAN
Multi-format Memory Card Reader
Logitech Cordless KB & Optical Mouse

Now I can get either:
Aluminium ATX Midi Tower + 550W PSU
or:
Aluminium ATX Midi Tower + 1000W PSU

For the system which power supply would I need?

If I was to buy a second 320MB nVIDIA GeForce 8800 GTS - Dual DVI, HDTV, TV-Out for SLI would I need 550 or 1000?
 
550W would be enough for one GTS, i'd say around 750 (or more) for two. the price difference between cheap and nice PSUs is enough to spend a little more and get a decent one. your better off having too much than not enough here.
 
how much is that costing you if you don't mind me asking? its just im builging a comp with that exact same spec :)

About £1200, urs?

the 550W one will be more than enough... if its a quality unit. got any spec's on them?

Well I cant find any spec for the 550w power supply, just a spec about the case.

I am hoping to buy a 320MB nVIDIA GeForce 8800 GTS - Dual DVI, HDTV, TV-Out which the 550w should be enough, however In future if I want to buy another 320MB nVIDIA GeForce 8800 GTS - Dual DVI, HDTV, TV-Out for SLI, I dont want to have to upgrade my psu as well. What you guys think?
 
just make sure it has plenty of power on the 12 volt rail and that it is name brand PSU, having a stable PSU is better than having one with just a lot of watts. just be careful because the vast majority of PSUs that come with cases are terrible
 
do not use the power supply that is included with the case. unless its a good brand and with a good amount of amps on the 12v rail. Wattage isnt everything. I have a 600W and has less 12v amps than a 450W
 
Maybe you guys can tell me more. This is all the site says:

Aluminium ATX Midi Tower + 550W PSU - Black

The MESH X-treme Gamers case is constructed with an aluminium alloy that can conduct heat 3 times faster than steel! What does this mean ? Well, high-end CPUs, Graphics Cards and Hard Drives will all benefit from the greatly reduced operating temperature! This same aluminium alloy also reduces the overall weight of the case by 34%! (in comparison to casings made of steel).

Put simply, this case has style, performance and usability! A must have for any top performance PC.

Product Specifications
Width (225mm); Depth (540mm); Height (463mm); Weight (10Kg)
Chassis Colour (Black or Silver); PSU (550W)
Visible 5.25 (4); Visible 3.5 (2); Internal 3.5 (4)
Top Connectors (USB 2.0 x 2; MIC x 1; SPK x 1; Firewire x 1)
1 x 120mm blue light fan at the front

Lower the system internal temperature: the MESH X-treme Gamers Case is made of aluminum alloy which can conduct heat 3 times faster than steel. Greatly reduced operating temperatures for high-speed CPU, high-end VGA card and high-RPM hard drives.
Light Weight: Lightweight aluminum alloy greatly reduces its weight (34% in comparison to casings made of steel).
Easy installation: Use thumbscrews for easy removal of side panel.
User Friendly: stylish top I/O panel provides easy access and flexibility.
Wonderful ventilation design: 120mm cooling fan space at front and rear and optional space on top. Airflow holes in the front and side panel for the better heat dissipation.
Particular treatment on appearance: chassis is enriched by a series of surface process such as hairline, anodizing, chemical polish.
Longer lasting: Using 2mm thickness as a solid constructer makes the chassis durable and sturdy
Safety assembly: 100% edge bending to avoid scratches
 
I believe that the 550W PSU in question is a good quality HEC built unit. It should have no problems powering your system with a single 8800GTS, but you'll need to upgrade if you want to add a second.
 
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